SE533596C2 - Procedure and board fixture for mounting of building boards - Google Patents

Description

533 596 A problem that has become increasingly noticeable in recent times is air leakage in exterior wall constructions where building boards have been used as wind and water repellents. This is due to movements in the disc material caused by variations in humidity where swelling discs have created gaps between the screw attachments and where damage to the discs' moisture-repellent coating, caused by the screws, results in unnecessary energy losses. In addition, there is an obvious risk of moisture damage and mold infestation in the construction.

As a result of the monotonous and repetitive work steps during screwing, it can be mentioned that only 2-3% of the people who work with wall mounting on a daily basis can work until retirement. A fitter assembles approx. 7 pcs ski- vor per hour. Each disc is screwed with approx. 50 screws. This means that 350 monotonous steps are performed every hour, which gives 2800 steps per working day.

Common wear and tear injuries are found in the shoulders, neck and back. Whitening fingers due to vibrations from the screwdrivers are also common. Recently, gluing of boards has begun at the same time as the number of screws has decreased. This is mainly to make it easier for the fitters. The screw is still needed to hold the disc in position while the used glue hardens. There have also been attempts to use double-sided adhesive tape. However, the tape procedure has the disadvantage that the discs cannot be adjusted during assembly. Nor did the tape joint become sufficiently secure in the long term, which is why taping is not applied to any appreciable degree.

OBJECT OF THE INVENTION A main object of the present invention is to provide a technique which provides a very strong and level (joint) joint between building boards without the use of penetrating fasteners, even when the boards are not joined over an underlying substrate / rule.

Another object of the invention is to provide a technique which makes it possible to use an arbitrary width of discs, i.e. to reduce disc waste. This is made possible by the fact that the board extension allows secure jointing and adhesion / gluing even to a previous board base. More particularly, the invention relates to a technique in which a board fixture is used in the joint between adjacent boards. The invention is advantageously used together with building boards which have recessed putty edge portions.

Another object of the present invention is to provide a technology which makes it possible to easily build your layers of building boards in order to create a strong shell construction and without the need for the boards' joints to be above the underlying regulations. Another object of the invention is to provide holding of building boards against a hard and / or uneven surface during the time that an adhesive applied to the surface hardens.

A further object of the invention is to provide a technique which facilitates the alignment of building boards and a simple application of the board structure before it is fixed to a substrate.

Another purpose is to be able to use more environmentally friendly adhesives. Yet another purpose is to be able to easily and safely seal exterior walls against drafts and moisture.

Another purpose is to specify a technique for joining building boards where the board structure used reduces the amount of putty attached to the joint and also acts as reinforcement for the putty.

Another purpose is to reduce the number of bars.

Yet another object is to glue at least three parts at a time with only one glue application, of which two of the parts are the edges of the boards.

The above objects are achieved according to the present invention in that the process and the joint structure have obtained the features stated in the claims.

General description of advantages of the invention By using a slab channel with glue channel which clamps and holds a first building board securely against the substrate, and which receives the edge of a second building board only after glue has been applied next to the board structure, one of the building boards will exert a squeezing and distributing effect on the adhesive and spreading it through the sockets to the edge area of the second (first) disc and to any. underlying substrate (rule, board, wall, etc). Of course, the glue also spreads to the board fixture, which can also be seen as a base.

The board fixture is fixed to the base, which can be a rule, reinforcement profile, board or existing wall using tape, screws, nails, clamps, or rivets. In normal cases, the transverse force applied to a disc placed vertically against a substrate needs to be so great that the frictional grip created against the substrate is able to hold up the weight of the disc. Through the present invention, the board structure will create this retaining effect through the clamping force the adhesive channels exert against the edge portions of the board. It is also possible to provide a reinforcement of the frictional force that holds the disc through special friction devices, or friction-increasing means (surface coating). This means that a less aggressive and less fast-fixing glue can be used, ie a glue that allows a certain readjustment of the disc if necessary. Sheet fixture with double-sided adhesive tape can be attached to, for example, a concrete wall, whereby the formed tape joint is reinforced by gluing. In principle, it can be said that you get a form-fitting locking between boards, joint fixture and base, or alternatively also including flexural stiffeners.

Because the disc xtures have recesses or openings along their length, a string of glue applied to the disc xture will be distributed evenly via these openings to the adjacent disc and to the substrate and possibly to an underlying flexural stiffener.

The method and the sheet fixtures according to the invention can advantageously be used together with the magnetic adhesive method according to Swedish patent SE530693 when the construction requires support of the middle part of the sheets. The present invention applied together with the said patent means that the magnetic strips do not have to be used to the same extent and that fewer magnetic strips are needed. This is made possible by the fact that the disc structure is able to hold the weight of the disc, so the adhesive does not have to harden for the same length of time, as the load is reduced. Depending on the choice of glue, humidity and temperature, the magnetic strips press the middle part of the disc against the substrate until the glue has hardened / solidified. When the glue has hardened / solidified, the lists are removed and used again. The benefits of this method are many. The assembly is almost silent / vibration-free and gives the fitters a good working environment with very little physical strain. No filling for skmv skulls is needed, which saves time and money. In addition, the method gives the market the opportunity for new types of more refined boards as the surface layer of the boards is not damaged. Due to the present invention, it may be sufficient to use magnetic strips only in the middle of the disc, ie not over the joints, which is an advantage.

Because the invention does not necessarily need to splice over a rule, the width of the rule does not need to be dimensioned to provide a joint space for adjacent boards against the rule, ie the width of the rule can be made smaller, and fewer rules are needed as the cc distance can be increased. Increasing the cc distance from 450 mm to 600 mm means a saving of studs by approx: 25%. This also means that the sound-absorbing capacity of the wall increases as much of the sound is transported through the wall via the studs.

When assembling your bearing discs, large savings are made as the assembly is much faster, since the disc structure is placed on the underlying disc and without regard to the rule placement. When screwing, the splicing of the boards must be done in the middle of the rule, whereby the fitters must first "find" the rule, and secondly, the first board at each layer must be adapted. Tolerances that occur, of necessity for the board manufacturer, are, among other things, the width measurement (often +0 to -3 mm), can with long walls cause the board to lose the rule. Not having to splice over a rule also means saving disc material as the last piece's waste bit can be used as a starting piece in the second team, in principle regardless of disc width. 533 596 The invention can advantageously also be used for building a wall with sk your disk layers, preferably a wall with two mutually glued disk layers, whereby a disk xture between underlying disks can preferably be of a magnetic material which then acts as a "resistance" for magnetic strips applied on an additional disk bearing. When building walls with only one slab layer, or when installing a last slab layer, it is advisable to choose slabs with recess (putty edge) in the longitudinal edge portion and then dimension the goods in the slab xtxterior exterior re even so that it is equal to or less than the recess' depth, hole or slot - can be made so that the putty can penetrate the material and also attach to the substrate. It can be mentioned here that the disc structure can advantageously be made of expanded metal.

The problem of “toothing” of disc joints disappears completely when using the disc structure, as well as the fact that deviations in disc thickness between different discs are removed by the adhesive backing on the back of the fixture and fix the surface sides of the discs in correct positions.

A variant of the disc fixture according to the invention can be used as a start and end fixture. These variants have the same function and are basically half a disc fi xttlr described above. An advantage is that boards with countersinking of the edge can be used against another wall without this part having to be removed, since putty support can be built into the så xture so that smooth filling of the countersink is facilitated.

The adhesive joint ends up with the aid of the board structure according to the invention so that the edges of the boards are glued to each other, which gives a considerably stronger joint than when boards are glued separately on a substrate next to each other, ie where only the surfaces of the board edge portions are glued. In particularly sensitive applications, it can be an advantage to use a transparent material in the texture and a colored glue to be able to visually ensure sealing, eg when mounting boards intended as a diffusion barrier.

Exterior wall panels such as the sealing wall against drafts shall be mounted with advantage with the disc structure according to the invention. Today, different types of boards are used, such as gypsum-based, cement-based, wood-based and in various forms with composite materials. Many of these are difficult to screw in, in addition fl your disc types are relatively sensitive to moisture, which is why they tend to shrink or swell. This can sometimes be seen as swelling of the discs has created gaps between the screw fasteners, and air can then easily blow through the wall. This impairs the insulation value in the walls with increased energy costs as a result. In addition, there is a risk that moisture will penetrate and cause other types of problems in the wall, such as mold formation. In addition, the protective surface layers of the boards are damaged by the screwing action, which impairs the properties of the boards against moisture and drafts.

With the use of the disc assembly, it is not necessary to damage the surface of the disc with a screw to the same extent, but their structure and any surface treatment is intact even after assembly. The adhesive joint effectively glues and seals the board to the frame and between the boards, which gives a tight and dry wall. In addition, the adhesive joint is protected by its placement in the board exterior against any water splashes or UV light, which greatly benefits the adhesive's long-term effect. There are many environmentally friendly adhesives that can withstand cold and moisture on the market. UV radiation is a major problem.

IMAGE COMPILATION The invention will now be described in connection with exemplary embodiments shown in the drawings, where Figure. 1 shows in perspective a board exterior with adhesive layer in accordance with the invention in position to be slid in over the edge portion of a building board, Figure 2 shows board and board extension in position for application to a rule, Figure 3 shows board and extension in the correct position against the rule and where a protective layer is removed to expose an adhesive layer on the back of the, xture, Fig. 4 shows the board and fixture in place attached to the rule and where an adhesive string is applied to the disc, xture, Fig. 5 shows insertion of an additional building board in the joint Bild xture, Fig. 6 shows the finished the joint between the building boards Fig. 7 shows a variant of the board structure with glued stiffening profile Fig. 8 shows how the joint structure according to figure 7 is used for preparation of reinforced jointing / joining an additional building board, Figure 8b shows a “normal” joint structure for preparation of “normal” joint Fig. 9 shows the splicing / joint carried out according to Fig. 8, Fig. 9b shows the splicing / joint carried out according to Fig. 8a Fig. 10 shows the reinforced joint of the joint according to Fig. 8 with an additional building board and slab structure at a further protrusion rule, and where 533 596 Fig. 10b shows the “normal” joint of the joint according to Fig. 8a with another building slab and slab fixture at another profile rule.

Figure ll shows a splicing of discs outside the rule with reinforced splice fixture Picture llb shows a “nonnal” splicing of discs outside the rule.

DESCRIPTION In addition to what is shown in Fig. 1 to Fig. 1 lb, it can be mentioned that the disc fixture has a front end 1 and rear end 3 and a cohesive life 2. In the waist 2 and in the rear end 3 there are recesses or openings 4, through which an applice rat glue can pass. By arranging an adhesive or adhesive layer on the outside of the rear end, hiding in the form of a double-sided adhesive tape 5, also provided with openings, it becomes possible to fasten the board structure to a substrate, eg a concrete or wooden wall. Even if the tape joint itself does not have a long service life, it is sufficient to hold the board with a board for as long as necessary for an applied adhesive to pass through the recesses or openings 4 to the adjacent board and to the substrate and begin its curing there.

A supplement can also be made with regard to the disc structure shown in Fig. 7, which is provided with a bending resistance-increasing profile. Although this profile could in principle have been placed in advance or even included in one piece with the rest of the disc structure, the use of a loose bending resistance-increasing profile is preferable, since such is only used for a first disc layer and when there is enough space behind the discs.

The glue openings in the channels can of course be made in your own way in the fixture depending on the desired effect. Smaller holes can, for example, be arranged in rows in height complementary to each other so that the glue will cover each part of the joint, for example when sealing outer walls. Other materials, such as expanded metal, can be used for the board fixture, which then automatically provides adhesive-permeable openings. The channels in the disc structure can also be created in different ways. Both, but preferably only one channel can be formed by means of a surface on the substrate. The channel of course still has its glue-permeable recesses and the channel formed with the substrate works in the same way, ie it holds the board against the outer fl end and creates a level-correct joint with an adjacent board.

The glue is applied in the fixture, the board is placed in / next to the fixture and in the desired position. A disc lift facilitates assembly, as the disc with the help of this is easily adjusted and fixed during adjustment / mounting in height. A second attachment is placed on the other edge of the board, the board now serves as a template for attaching the fixture to the base. This makes it possible to use double-adhesive tape when the fitting is exact through this step, and the need for later adjustment is eliminated, as the protective tape is only removed when both the extension and the edge of the board are in exactly the right position.

When mounting the first plate layer on steel studs, it may in some applications be easier to make the second fixture, (since the studs are fl surface in a rail), by mounting the board fixture on the bar first, and then fl surface the bolt with the mounted fixture against and in position on the edge of the disc, where the disc is already in its correct position for assembly, and in its first ñxmr.

The invention is not limited to the embodiments described above, but modifications may be made within the scope of the following claims.

Claims (1)

1. 533 596 PATENT CLAIMS. Method for mutually level mounting of a first building board and a second building board to a base by means of a board xtxture, which comprises a front fl end (1), a rear fl end (3) and a liv end (1, 3) cohesive life (2) , which fl grooves (1, 3) and webs (2) form open channels for receiving longitudinal edges of the building boards, the disc structure and the longitudinal edges of the building boards being brought into mutual interaction, characterized in that the board fixture is fastened to the substrate by means of a fastener comprising screw, nails, staples, rivets or adhesive or adhesive layers (5) and that an applied adhesive in the extension is spread and distributed via openings (4) in the life of the extension (2) and via openings (4) in the rear end (3), wherein the fastener forms a joint between the board structure and the substrate as long as it is necessary for the applied adhesive to pass through the openings (4) to adjacent building boards and the substrate and there begin its hardening to create a solid connection between on the building boards and the base and between the longitudinal edges of the building boards. . Method according to claim 1, characterized in that the fastener comprises said adhesive or adhesive layer (5), which is arranged on the outside of the rear edge (3). . Method according to one of Claims 1 and 2, characterized in that the edges of the discs are glued together by means of the disc structure. . Procedure according to one of the seas 1-3, characterized in that the substrate is a rule, reinforcement profile, board or concrete wall. . Method according to claim 5, characterized in that the xt xture fi is xxed on a rule, after which it fl is moved to its final position and there is caused to enclose the longitudinal edge of the building board. . Method according to one or more of the preceding claims, characterized in that magnetic devices are applied to the front of the building board in connection with the underlying magnetic material on the substrate, the magnetic field from said magnetic device passing through the building board and said magnetic materials adjacent to the substrate, or constituting the substrate. .ex. in the form of a steel bar, and in this way exerts a force pressing on the board and against the substrate. . Sheet inxture for mutual level-correct fixation of building boards against a base and for carrying out the method according to claim 1, comprising a 533 596 10 “front fl end (1), a bale fl end (3) and a fl scar (1, 3) cohesive web (2) forming open channels for receiving longitudinal edges of the building boards, which web (2) has line-through openings (4), characterized in that the rear end (3) also has line-through openings (4), the glue-through openings (4) 4) in the waist (2) and in the rear (end (3) allows the spread of applied lirn to the base and to the longitudinal edges of the building boards. Sheet fi xture according to claim 7, characterized in that it comprises a fastener in the form of an adhesive or adhesive layer (5), which is arranged on the outside of the rear fl end (3) to form a connection between the disc fi xture and the substrate for as long as it is necessary for the applied glue to pass through the openings (4) to adjacent building boards and the substrate and there begin its hardening to after the hardening create a fixed connection between the building boards and the base and between the longitudinal edges of the building boards 9. Board enligt xtur according to claim 8 , characterized in that a protective paper covers the adhesive or adhesive layer (5). Disc board according to Claim 9, characterized in that the upper edge (1) constitutes reinforcement for putty. Disc structure according to one or more of Claims 7 to 10, characterized in that a bending resistance-seeking body, preferably a body, is arranged on the rear side of the disc structure. Disc texture according to one or more of Claims 7 to 11, characterized in that the material in the texture is transparent or translucent.